Filler ring for tire structures



F. W. KRONE FILLER RING FOR TIRE STRUCTURES July 29, 1930.

' Filed July 12, 1928 INVENTOR.

KRONE A TTORNEYS.

Patented July 29, 1930 UNITED STATES- FREDERICK w. KRONE, OF SAN FRANCISCO, CALIFORNIA FILLER RING FOB Apiilication filed July 12,

This invention relates to improvements in tire structures and has particular reference to a filler ring or adapter stri positioned therein and adapted to be interposed between the a base of the inner tube and the inside of the beads of the casing to allow for the employment of my improved cushion in varying widths of wheel rims.

The referred to tube is described in my Patent No. 1,636,779 issued Jul 26th, 1927, and is designed to prevent, in a dition to its other objects the rim cutting of a tire when the same is deflated, which action is effected by employing the cushion element with the 16 inner tube so that when the tire is deflated, the cushion is interposed between the tire and the rim. However, my cushion tube has been initially employed in rims of narrow widths and in order that its range of use may be in- 20 creased and the cushion tube made applicable to rims of varying widths, I have devised my present invention. I propose to insert the referred to filler rings between the rim zone of the tube and p the rim zone of the casing, the size of the filler ring em loyed depending on the width of the rim t at holds the improved cushion tube. It will be obvious that in the use of said filler ring any empty space will be com ensated for and accordingly the filler ring t us provides a positive means for allowing the use ,of the cushion tube with different types of tires and different widths of rims.

Other objects and advantages will be apparent during the course of the following description.

In the accompanying drawing formin a part of this specification and inwhich like numerals are employed to designate like parts throughout the same,

Figure 1 is a vertical cross section of a tire easing and rim having my invention applied i a' f t dt'l 1 ure 1s a ragmen ary e a1 perspective iew of one of the filler strips, and

Figure3 is a side elevation on a reduced scale of one of the filler strips or rings.

In the accompanying drawing wherein for the purpose of illustration is shown a preferred embodiment of my invention, the nu- TIRE STRUCTURES 1928. Serial No. 292,099.

meral 5 designates a rim of the ordinary construction having upstandin sides 6 and 7. The numeral 8 designates t e ordinary tire casing, the numeral 9, the tube, within which is placed a cushion element 11 having openings 12 therethrough. The lower portion of the cushion element is tapered" so as to form a relatively narrow base 13 which base is of less width than the distance between the points A and B, which points designate the 00 adjacent margins of the tire casin at the points where it engages the rim. The numeral 14-designates a filler strip which is inserted between the lower portion of the cushion and the side of the casin In the present instance have shown .a. filler stri upon both sides of the cushion, but it is o vious that a sin le filler of greater dimensions could be emp oyed and still accomplish the same object. This filler ring is provided with a convex side 16 and a concave side 17, which construction permits the ring to conform more readily to the outside contour of the tube and the inside contour .of the casing base and assures a snug fit of the ring therebetween. A reinforcing strip 19, WlllCh preferably consists of a cable, braided wire or the like, of such consistency as to eliminate danger of stretching, is placed in the base of the ring.

It is to be noted that lips 20 are formed 0 the cushion and serve not only to stren then the tube and to prevent the same from uckling but also due to the fact that the lips flare outwardly cooperate with the lower edges of thecasing to retain the rings against displacement between the casing edges and the outer walls of the tube,

It has also been found that in addition to the other advantages of the ring, the same facilitates the compensating, rotating motionof the casin when the tire is run deflated.

From the Ioregoing description, constructed in connection with the accompanying 9 drawing, it will be evident that I have devise an economicall constructed, strong, durable and highly e cient filler ring that has a uni ue field of use and will readily accomplish the objects herein set forth.

It is to be understood that the form of my 15 tube, a pan of invention herewith shown and described is to be taken as a preferred example of the same and that various changes relative to the material, size, shape and arrangement of parts' may be resorted to without departing from the spirit of the invention or the scope of the sub'oined claim.

aving thus described my invention, 1 claim A tire structure including an outer casing, an inflatable inner tube within said casing and having a rim zone portion of comparatively massive structure provided with a pair of lips engaging1 the inner periphery of the ller rings between said portion and the edges of the casing, the lips of said massive portion cooperating with the casing edges to retain the rings against displacement.

In testimon whereof I afiix m signature.

REDERICK W. liRONE. 

